With more than 3,500 spray dryers installed worldwide, SPX FLOW Danmark combines experience and cutting-edge technology into added-value solutions for its customers.
Spray Dryers - Function and principle of operation
The liquid is dried, collected and delivered for further treatment without any intermediate manual handling. The spray drying process is applicable to a wide range of products and industries, and plant capacities from a few gr/h to 80 tons/h are available. SPX FLOW handles projects ranging from laboratory size to large industrial spray dryer processing lines and turnkey plants.
Correct atomization and air distribution are the keys to the spray drying process, as both greatly influence the final powder structure and quality. Often, spray dryers are equipped with high-speed centrifugal atomizers ensuring sturdy and reliable operation. High-Pressure nozzle atomization is used especially for products where a rather coarse powder with narrow particle distribution and high bulk density is required. In the nozzle atomizer, fines are returned around one or more central nozzles in order to facilitate optimum agglomeration. Two-Fluid nozzle agglomeration is typically applied in small chambers allowing maximum flexibility in particle design and particle engineering for both super-fine and agglomerated particles.
Anhydro spray dryers incorporate a number of special design features including atomizers as well as the Anhydro Controlled Flow Nozzle for easy start-up and shut-down, short off-spec period, controlled particle size and easy process control.